RS not letting me make custom cards... help

[ajhawk]

When I got file->create/edit custom cards it pops up the following error:

Error: Can't call method "GetValue" on indefine...

Anyone know how to fix this?

 

[Akane]

You're sure you have Excel, yes?

 

[shiwei87tan]

I have problem too.. When I go file and create/edit custom cards nothing pop up.. It's RS ver 4.20 and I do have Microsoft excel..
Posted with Mobile style...